Improved machine for cleaning and separating ores



Y 2 Sheets-Sheet 1. N. CARPENTER.

Ore Jigger.

Patented May 3, 1864 Witnesses= AM. P HDTOLITHO. C0.N.I.10SBORN E'S PROCESS.)

%. W J/MXL 2 Sheets-Sheet 2. N. CARPENTER.

Ore Jigger.

No. 42,558. Patented May 3, 11864.

Inventor:

Witnesses: g i I AM. PHIJTQ LITHO. C0.N-Y- (OSBDRNE'S PROCESS-l eign matter.

of pure metal should be. derived than can be NITED STATES NICHOLAS CARPENTER, OF ELLENVILLE, ASSIGNOR TO HIMSELF, S. B.

SMITH, E. J. GENNET, AND H. KELLER, OF NEW YORK, N. Y.

IMPROVED MACHINE FOFt CLEANING AND SEPARATING CRES.

Specification forming part of Letters Patent No. 42,558, dated May 3, 1864.

To all whom it may concern I Be it known that I, NIcHoLAs CARPENTER, of Ellenville, of the county of Ulster, in the State of New York, have invented certain new and useful Improvements inMaehinery iorJigging Lead and Other Ores; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

My invention relates to that portion of the machinery employed in separating and cleaning ores known as jigging machinery, and has for its objects to overcome certain prac tical difiiculties, which have heretofore rendered such machinery comparatively valueless, and to rendersuch machinery capable of successful operation and of producing a much larger percentage than heretofore of pure metal from a given mixture of metal and for- Previons to my invention jigging-machines have been madein which the hutch was rectangular in form but practice has shown that with a hutch thus shaped the action of the water on the save-alls is such as to render it necessary for the operators to keep constantly turning the latter in their seats, in consequence of the contents thereof being acted on more violently on one side (that nearest the bob) thanon the other, and experience has shown that a considerably larger percentage gotten out by this kind of hutch. To avoid the necessity of turning the save-ails, and to produce a hutch in which a larger percentage of pure metal can be derived,'and from which the pure metal collected can. be more easily removed with less hand-labor, are the objects of the first part of my invention, which consists in making the hutch in the form of an inverted frustum of a square pyramid, whereby the action of the water, when moved by the bob or plunger, is such as to operate equally on every portion of the save-alls, and the pure metal accumulated will be induced to discharge itself when thedoorsof the hutch I are opened. I

Previous to my invention it has been customary to arrange a stoning-box in the top of the hutch through which the bob or plunger l shaft or rod workedabout air-tight; and in a I .part of this specification,

machine thus constructed it was with diifienlty that the operators could remove the,

the savealls to fill the vacuum created by the removal of the plunger creates such a pressure on them as to prevent their being lifted from their seats. I have discovered that the plunger audits rod may work loosely through the top of the hutch, so as to admit of a free ingress and egress of the air, and the above named objection be thereby eiiectually'overcome without any material escape of water from the hutch around the plunger; and the second part of my invention consists in so constructing the plunger and hutchtop and arrangingthem together as that there will he an annular opening surrounding the plunger in the hutclrtop of suflicient capacity to' admitof the tree ingress and egress of the air during the strokes of the plunger, substantially as and for the purpose more fully set forth hereinafter.

Previous to my invention it has been ens tomary to convey the crushed rock and ore, mixed, from the crusher to the screen, and thence to the hopper, from which the save-alls are supplied by hand-labor. The third part of my invention consists in the arrangement with the hopper of a conveyer constructed and arranged relatively with the screen and hopper as to receive the crushed material from the screening-machine and convey it to and discharge it into the hopper, as will be, hereinafter more fully explained.

To enable those skilled in the art to make and use my invention, I will proceed tov describe the construction improved jigging machinery, referring by letters to the accompanying drawings,

and in which- Figure l is a top or plan view of one of my improved jigging-machines.- Fig. 2 is a vertig cal section of the same at the line A A, Fig. 1.

t Fig. 3 is a partial vertical section at the line B B, Fig. 1; and Fig. atisadetail view, in crosssection (at y 1, Fig. 1) and plan, increased scale, of the save-all;

In the several figures the same parts areindicated by the same letters of reference.

or elevator so and operation of my forming is arranged the bob or plunger 7 their lower edge,

f P. On this latter is-secured a cast-iron stand, m, in which rests anditurns (in suitable bearings) the fulcrum-pivot l of the vibrating arm or beam h, at one end of which is arran gel the shoe or 'strap s, which is pivoted at r'to the upper end of the pitman t,- and near the other end of arm h is secured the shoe 7 or strapa', which is pivoted at 19 (see Fig. 3)

to the upper end of apitman, (not shown,) the lower end of which is connected to the crankpin of a face-plate, it, (see Fig, 1,) which is fast on the end of shaft g. The lower end of pitman a is connected to the upper end of the rod or vertical shaft J, on the lower end of which On the two shafts g g are secured two conepnlleys, ,L and M, which are belted together in the usual Way, and on shaft 9 are also keyed a 'fast and loose pulley, N O, on which runs the main driving-beltot the machine. I i

I is the hopper, into which the crushed. rock and ore are conveyed from the screen by means of the elevator R, which may be made in the usual manner, and driven by-a helt from the pulley L, or in any other desirable manner. The hopper I is made with a vertical hollow shaft, through which works vertically the bob- .shaft J.- (See Figs. 2 and 3.) w

. E isthe hutch. which is constructed of suitable boards bolted to corner timbers, and the whole properly strengthened by side braces or timbers, F, and cross ties G, o11 which latter the hopper I may be supported. This hopper, as also the hutch E, is provided with a door 'oneach side, near the bottom,as seen at a and a for thepurpose of allowing a supply to the save-alls in the usual manner, and the doors in hutch E being used to allow the escape of the. contents of the hutch after the jigging operationis finished; The-hutch E is covered over by a cover, 07, arranged in the usual manner, about even with the floor O, and in which coverd are four circular openings, in to which fit four tapering thimbles, e, which are made of cast-iron, with a flange projecting outward from their top edge so as to rest on the cover d, and an annular inner flange at on which rests the save-all f, which is made in the usual manner, with a sieve or wire gauze for its bottom. The'cover d is made with an annular or cylindrical flange or projection, 0, within which works up and down the plunger K. This plunger K sh'ould be-made somewhat less in diameter {than [the internal diameter of the cylindrical the doors in hopper I being flange 0, so as to leave an annular space between the said flange and plunger sufficient for the escape and return of the air during the strokes of the plunger-say one-eighth of an inch on a fullsize machine. The position of the four save-alls is clearly seen at Fig. 1, and the detail construction ofeach will be clearly understood from Figs. 1 and'4. The hutch E should be properly supported on timbers H over the floor D, in the usual manner.

I have not shown the screening machinery in the drawings,'as my invention does not relate to any portion or peculiarity of such ma-. chine, and it will be understood to be so located as to discharge the screened material into the buckets of the elevator or conveyer It. The operation of my improved jigging machinery may be thus briefly explained: The

hutch E being properly supplied with water in the usual manner, and the hopper I kept v 'vibratingarm or walking-beam h in the ordina ry manner, and through the pitm an I effects the reciprocating motion in the vertical shaft J,

which carries the plungerK, which bobs in the water in the hutch and causes the washing-out of the save-alls of the foreign substances and the separation of thefine metal on the pripeiple familiar to those skilled in the art. save-alls f are filled by the operators from the hopper I by opening one or another of the doors a, and when a sufficient quantity of ore has been jigged the fine metal in the hutch is secured by simply opening the doors a. The

save-alls are kept charged at their bottoms with a suflicient layer of pure metal in the usual manner, and the rock and surplus metal kept out constantly by the operators in the manner well known.

It will be understood that in the old rect angular form of hutch the water acted much more violentlyon that port-ion of the save all which was nearest to the plan ger, so thatthe' operators had to keep constantly turning round the save-all and presenting the difier ent portions ,thereof toward the-plunger to effect an equal jigging of all the material in the save-all, whereas in my improved form of hutch the water acts evenly and uniformly on all portions of the save-all, and jigs its contents evenly, while the save-all remains stationary. Y

It will'also be understood that-in consequence'of the tapering form of the hutch E the fine metal which descends therein is washed much cleaner, and the deposit in the hutch hasa much larger percentage of pure mete! than has ever yet been derived by the jigging operation, and also that by having the hutch E taperingtoward the bottom, as shown, it will almost or quite empty itself when the doors a are opened, thus dispensing with a air during the strokes K the save-alls are relieved of all pressure leys are to change a greatdeal of hand-labor required in cleaning the fine metal and slimeiout fashioned rectangular hutch.

By affording asuficient opening around the plunger K for the entrance and'cscape of of thebob or plunger of the oldtending to retain them in their seats, and may be readily lifted by the operators at any andall times-for cleaning out and recharging in the usual manner.

The large amount of hand labor heretofore expended in carrying thematerial from the screen to thehopper I, it will be seen, is dis-' pensod; with by the arrangement of a conveyer connecting the screen-with the hopper. The object and advantage of the cone-pulthe' speed ofthe jigging machinery relat ivelyjto that of the main driver,

in order that the plunger may be maintained at the given requisite speed, while the speed of the'main driver or motor may, from various causes, vary very materially. r The working of my improved jigging machinery has demonstrated a practical gain of about twentyfive per cent. in the percentage- 'tion.

of nure' metalderived by the jigging operathe art can what I claim Letters Patent, is-

made

tion,fso'that' any one skilled in make and use't'he same, and desire tosecure by 1. A. hutch whichv is and for the purposes 86b forth.

2. S0 constructing and combining the plunkger and hutch-as to ad mit of the ingress and egress of the air around the .plunger, or in any othermannenas and for the purpose described;

3. The combined; arrange n'ent of .an elevator or conveyer, any suitable screen, as and for the purpose 1%,; with the hopper I, and

hereinbefore set forth. v

In testimony whereof I have hereunto set NICHOLAS-CARPENTER." -[L. s.j In presence of--. PETER VAN-Bureau,-

ANDREW J V A; DUGEE.

Having fillly described the construction and operation of the several features .of my-invcnas new,

taperingfrom v the top toward'the bottom, substantially asseal this 29th day of J anuary, 

